Hinge



Nov. 20, 1928. 1,692,o32

` C. GESKE HINGE Filed Sept. 19, 1927 Carl Geske Patented Nov. 20, 1928.

UNITED STATES lmrslar OFFICE.

CARL eEsKn, or GRANDRAPIDS; MICHIGAN, AssIGNoR To wmcrrms e' CHAMPION' MANUFACTURING COMPANY; or GRAND Barnas, MICHIGAN, A CORPORATION or MICHIGAN.. i'

HINGE.

Application filed September 19, 1927. Serial No. 220,327.

This invention relates to hinge, being more particularly concerned with a novel. construction of hinge member` and method of making the same. It is common to .make hinges wherein one hinge member comprises a base plate with spaced apart lugs projecting therefrom between Vwhich one end Of the Other hinge member is located, a `pivot pin extendingthrough said lugs and the end of the other hinged member disposed between them. The lugs project at right angles from the plane of the base plate and heretofore it has been the most common practice to make the .first hinge member as a casting the lugs being east integral With the base plate. i

The east base plate and lugs are open to many objections7 the principal One'ofiwhich is that it is impossible tO accurately castto a degree such that the hinge member which is to be disposed between the lugs shall lit the same properly necessitating that the lugs be machined in Order to secure the proper entrance of the other hinge member between them. In addition cast metal, particularly brass which is the metal most commonly used in making hinges Vof this type'for refrigerators is soft and porous and is liable to be deficient in strength sothat the hinge in many instances does not stand up in service.

In the present inventon novel method has been devised for producing the base plate 'with projecting lugs all parts thereof being .st-amped and readily formed on a punch press and after formation readily assembled, using a punch press. The base plate is of rolled brass or similar metal and is toughened and Strengthened by reason of the rolling process to which it has been subjected. The lugs are made from rolled bars of metal and during their formation from such bars are further machined and worked so as to be toughened and tempered and greatly increased in strength.

An understanding Of the invention may be had from the following description taken in connection with the accompanying drawing, in which,

Fig. 1 is a perspective view of a complete hinge made in accordance with my invention.

Fig. 2 is a perspective view Of One of the hinge members showing the base plate and 'the lugsv which are to be permanently secured thereto.

m Fig. 3 is a perspective view of .the hinge member after the lugs have been secured to thebase plate.

Fig. 4 is a fragmentary enlarged section' illustrating the assembly of a lug .withthe base plate previous to the punch press'operation which permanently secures the two together. y Fig. 5 is a similar view illustrating said lug and base plate after the Operation. of securing them together has been performed.

Fig. 6 is a fragmentaryperspective view,` similar to that 'shown in Fig. 3, wherein a slight modificationwin the form of the lug and base plate is illustrated,.and

Fig. 7 is'a view similar to Fig. 5 with ref'- erence to the slightly modified form. 'Like reference characters refer to like parts in the different figures of the drawing.

The first Operation in forming one of the hinge members is to provide a base plate 1 of flat metal of any suitable Outline through which spaced apart openings aremade and7 preferably, the metal around the Opening pressed outwardly making a raised embossing 2 around each Opening. This is performed on a punch press and at the under side of the Vplate below the embossing the Opening which theembossing surrounds enlarges downwardly and Outwardly as indicated at 3.

The lugs 4; lOneof which is to-:be attached to the base plate at each ofsaid openings 2 are cut from fiat bar stock and then shaped in a punch pressso as to somewhat compress and thicken the upper ends of the lugs with the formation of an annular shoulder 5 between the lower edges of the lugs 4 and a depending integral section 6 Which extends from the lower end of each lug 4 and is of a size to'freely pass through and fit in an openingl surrounded by an embossing 2.

The formation of the shoulder 5 is such that when a lug is applied to the base plate by inserting the lower end portion 6 through one of th'e Openings, the shoulder bears directly against the upper edges of the embossings 2 andthe part 6 extends through the Opening 2 a considerable distance. Then by pernianently I to' make a means of a suitable die and punch the part 6 is upset and thickened and reduced in height and spread out so as to completely ill the flared and Widened portion 3 of the opening 2, as shown iii-Fig. 5'at 6", thus makinga very permanent and` secure connection of the lug to the base' plate. Both lugs lmay be attached to the base plate at one and the same time and' when attached the lines of'd'emarcation between the lugsV 4 at the shoulders 5 and the upper edges of the embossings 2 are practically invisible and disappear entirely upon inishing the hin'gtei member with the usual bufling and polishing operations, particulaarl'y if plat'edE as most hinges are when used for refrigerators.

-It 'is not necessary to the embossing'f` 2 around a'n=`op'en1ngthrough the base plate hinge member comprises a plate 7 one endthereof being` formed into a roll' 8 which, passmg between the two spaced apart'l'ugs 4, 1's connected tosaid lugs by a lunge pin 9 assino throufl'h the o enines in the luvs and D L PJ lengthwise of the roll- 8'` hea'ded at its ends permanent andr securehinge connectionf f VVhen constructed in. the manner described it is not necessary to machine the lugs et at all inasmuch as with proper dies the-parts may be f'abricated tovery closelfimits. The

ll'u'gs'ti particularly are very strong and` durable beingin' the first instance mad'e'of rolled metal which in the forming of thev lug is considerably worked and toughened and Vtempered with a correspon'ding increase in strength. This method of forming a hinge member of the type illustrated is very practical and eflicient and there may be produced with dies an exceptionally practical and serviceable' hinge member structureequal in 'every respect to drop forging vin quality With a completewelimination of the difiiculies andextra expense of drop forgingoperations.

I claim:

1. The herein described method prolducing a hinge member which consists in providing'a base plate o'f flat metal having two spaced apart openings therethrough, said base plate around each Opening being pressed: upwardly to' formair upwardly and inwafrdly taperedf einbossino'- 'around said vOpening through thefhase plate, saidl openings their lower ends being larger tfhan at their upper ends, insertiug a lng through each Opening eachof said lugs having a horizr'ont-'alz shoulder around it between its-ends with a section below said shoulder adapted to feely passthrough the Opening i-nV the basefp i te; and then upsett'ing rivetingand thicleningt said reducedsection tolil'lf the lower enlarged end portions of said openings through the base plate and'` 'draw the shoultler on each lug` ti ghtly into engagement with the' uppt-r.` edge of each embossing around each Opening;

2. Thefherein described-methfod ot producing a hinigemember which consists inv providing a base plateof flat metal having an Opening` 'therethrougln said base plate around; the Opening beingra'ised to form a: boss, inserting a lugl through the Opening3 said lugV having a should'er between its ends with a; sectionI below the shonlder adapted to freely pass through the Opening in the base plate and thenriveting said`l` reduced sectioni at the' under side of the basef platev to* draw the* shoulder on thellug tlghtly into' engagem'ent with the upper side of said boss.

In-t'estimony where'of' I aflix niy signature.

CARL GnsKn 

